... RFID reader used for access control system *Interface:RS232 ,Wiegand *Technical support,SDK Access control reader*Proximity RFID reader used for access ... control system*Interface:RS232 ,Wiegand*Technical support,SDK CharacterProductSpecRFID readerAccess RFID readerPortUSB,RS232,WiegandPowerDC 5V~24VReading distance3 ...